5/12 + 11/18 = 15/36 + 22/36 = 37/36 = 1 1/36
21/25 + 8/15 = 63/75 + 40/75 = 103/75 = 1 28/75
3/4 + 7/8 = 6/8 + 7/8 = 13/8 = 1 5/8
16/45 + 7/15 = 32/90 + 42/90 = 74/90 = 37/45 = 0 37/45
5/12 + 11/18 = 15/36 + 22/36 = 37/36 = 1 1/36
21/25 + 8/15 = 63/75 + 40/75 = 103/75 = 1 28/75
3/4 + 7/8 = 6/8 + 7/8 = 13/8 = 1 5/8
16/45 + 7/15 = 32/90 + 42/90 = 74/90 = 37/45 = 0 37/45